Question

d) 4x - 9 = 2x + 19

e) 6x + 29 + 3x = 2

f) 3x + 10 = - 2x + 35

Answer 1

d) 4x - 9 = 2x + 19

$4x - 2x = 19 + 9 \\ \\ 2x = 28 \\ \\ x = \frac{28}{2} \\ \\ x = 14$

e) 6x + 29 + 3x = 2

$9x = 2 - 29 \\ \\ 9x = - 27 \\ \\ x = \frac{ - 27}{9} \\ \\ x = - 3$

f) 3x + 10 = - 2x + 35

$3x + 2x = 35 - 10 \\ \\ 5x = 25 \\ \\ x = \frac{25}{5} \\ \\ x = 5$

Saludos